Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1995-11-27
1997-07-08
Suchfield, George A.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
210747, 210757, 210908, 588206, 588248, 588249, B09C 108, C02F 168, C02F 170
Patent
active
056453744
ABSTRACT:
A method for dehalogenating contaminated ground water and/or soil where the contaminated area is contacted with a titanium carboxylic acid derivative such as titanium oxalate, titanium citrate or titanium nitriloacetate and a corrin or porphyrin catalyst preferably vitamin B12 compound. The result of contact with the contaminated source is that the compounds reductively dehalogenate the contaminates thereby making it less toxic. This is achieved by making use of the non-toxic reagents, namely the corrin or porphyrin catalyst such as vitamin B12 and the titanium carboxylic acid derivative.
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Nada Assaf-Anid, Loring Nies, and Timothy M. Vogel, Reductive Dechlorination of Chlorinated Aliphatic and Aromatic Compounds by Vitamin B.sub.12, Presented before the Division of Environmental Chemistry, American Chemical Society, San Francisco, California, Apr. 5-10, 1992, pp. 489-491.
Brown Susan Jean
Lesage Suzanne
Millar Kelly Rose
Carson James W.
Her Majesty the Queen in right of Canada as represented by the
Suchfield George A.
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